Dense Fog Advisory issued April 17 at 7:00PM CDT until April 18 at 10:00AM CDT by NWS Duluth MN
* WHAT...Dense fog will reduce visibility to 1/4 NM or less. * WHERE...Two Harbors to Duluth MN, Duluth MN to Port Wing WI and Port Wing to Sand Island WI. * WHEN...Until 10 AM CDT Friday. * IMPACTS...Low visibility will make navigation difficult.